The speedo drive on the very early Subarus were cable driven from the gearbox to the drivers dash board.
The cable is actually made up of x2 pieces, a short section which screws into the gearbox which then joins a longer section which comes up from the gearbox, through the bulkhead and up to the instrument cluster.
These have now been discontinued and are no longer available as a new part. With this in mind, RCM have replicated this component, performing exactly as the original part did.